選擇器查看一個組件隱藏和其他組件隱藏

Question

我累了選擇器視圖ie（貨幣），（id）和顯示的兩個組件，但我的問題是如何在選擇器視圖中單獨隱藏「id」組件。和responseArray1中的「id」。

選擇器視圖代表：

-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView;{ 
    return 2; 

} 
-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component;{ 
     return [responseArray count]; 
    } 

-(NSString*) pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component;{ 
    //return [responseArray objectAtIndex:row]; 
    if (component == 0) { 
     return [responseArray objectAtIndex:row]; 
    } else { 
     return [responseArray1 objectAtIndex:row]; 


    } 
} 

-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component; 
{ 

    NSLog([responseArray1 objectAtIndex:row]); 
    if (component == 0) { 
     [pickerView selectRow:row inComponent:1 animated:YES ]; 
    } else if(component == 1) 
    { 
     if (row != [pickerView selectedRowInComponent:0]) 
     { 
      [pickerView selectRow:[pickerView selectedRowInComponent:0] inComponent:1 animated:YES]; 
     } 

    } 
} 

Answer 1

回答按評論：

-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView;{ 
return 1; 

} 
-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component{ 
return [responseArray count]; 
} 

-(NSString*) pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component{ 


return [responseArray objectAtIndex:row]; 



} 

-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component 
{ 

NSLog(@"rsponse currency : %@",[responseArray objectAtIndex:row]); 
NSLog([responseArray1 objectAtIndex:row]); 



// You can fetch value from both array using row parameter. 
// You can display currency and id for particular row from here like above 

} 

你不需要顯示在pickerview雙組份。只要顯示一個你想要顯示的，並根據選定的行，你可以從數組中獲取相應的元素。

希望這會有所幫助:)